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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. WALTEN BABA M.D
NPI 1649217985
Internal Medicine in Chicago, IL

Active since June 02, 2006
5140 N CALIFORNIA AVE, CHICAGO, IL 60625(773) 878-8200 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025, Mar 7, 2023 (3 updates tracked since 2023).

About Dr. Walten Baba M.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WALTEN BABA M.D (NPI 1649217985) is an individual internal medicine provider in Chicago, Illinois and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1649217985
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. WALTEN BABACredential: M.D
Location Address5140 N CALIFORNIA AVEChicago, IL 60625-3645
Mailing Address5140 N California Ave, Suite 635/645Chicago, IL 60625-3645
Phone(773) 878-8200
Sole ProprietorNo
Enumeration DateJune 2, 2006
Last NPPES UpdateJuly 13, 20263 updates tracked since enumeration
✔ NPI 1649217985 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedFamily MedicineTaxonomy 207Q00000X
5140 N CALIFORNIA AVE, Chicago, IL 60625
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Other Identifiers 1

Other165-402-9Ecfmg

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. CHATHUSHKI BANDARA DO
Emergency Medicine
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 878-8200
PIERCE MICHAEL PATERAKOS
Internal Medicine
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 878-8200
DR. VASEEM QURESHI M.D.
Internal Medicine (Nephrology)
5140 N CALIFORNIA AVE, SUITE 700
CHICAGO, IL 60625
Cook County (773) 784-2101
DR. WASAY HUMAYUN M.D.
Family Medicine
5140 N CALIFORNIA AVE, STE 700
CHICAGO, IL 60625
Cook County (773) 784-2101
DR JOSEPH S KIM DPM
Podiatrist (Foot & Ankle Surgery)
5140 N CALIFORNIA AVE, STE 515
CHICAGO, IL 60625
Cook County (773) 989-1699
DR. MORGAN CLEM DO
Hospitalist
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (217) 836-1376
LLOYD QUINN YOUNG
Podiatrist (Foot & Ankle Surgery)
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 878-8200
SHANNON SIKKILA N.P.
Nurse Practitioner (Adult Health)
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 293-4178

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Walten Baba's NPI number?

The NPI number for Walten Baba is 1649217985. It was assigned to this individual provider in the NPPES registry on June 2, 2006.

Where is Walten Baba located?

Walten Baba practices at 5140 N California Ave, Chicago, IL 60625. The listed phone number is (773) 878-8200.

What is Walten Baba's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Walten Baba was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.